Trolley.



G. E. SMITH.

TROLLEY.

APPLIQATION FILED APR. 5. 19oz.

\PAT-ENTE-D MAY 19, .1903.

N0 MODEL.

THE NORRIS mews 00.. PNOYO-LITHO.. wasnmaron. n c.

; 5, carrying the main truck 4, which revolves UNITED STATES] PatentedMay 19,1903.

GEORGE E. SMITH, OF EXET-ER, NEW HAMPSHIRE.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 728,313, dated May 19,1903. Application filed April 5, 1902. Serial No. 101,512- (No model.)

T0 at whom it may concern.-

Be it known that I, GEORGE E. SMITH, a citizen of the United States ofAmerica, and a resident of Exeter, in the county of Rockingham and Stateof New Hampshire, have invented certain new and useful Improvements inTrolleys, of which the following is a specification.

This invention relates to an improvementin trolleysfor electric-carservice.

The object of the invention is to simplify and perfect the constructionof the trolley and improve it in many respects and enable it, moreparticularly, to hold the wire firmly without losing its grip thereon. 7

It consists, essentially, in a hinged or auxiliary spring-actuated framecarrying a supplemental or second wheel designed to engage the conductorand to remain in engagement with the latter when the main wheel or truckceases to contact with said conductor; and the invention consists, moreover, in numerous details and peculiarities of the construction andcombination, as will be hereinafter set forth.

In the annexed drawings, illustrating my invention, Figure 1 is a frontelevation of my improved trolley. Fig. 2 is a side'view.

Similar numerals of reference denote like parts throughout both figures.

ldenotes the trolley-pole. To the upper end of this is fastened, bymeans of suitable vpins or otherwise, the yoke or harp 2, having theparallel forks 3 3, in the upper ends of which is supported the truckjournal or shaft between the forks 3 3. The shaft 5 projectshorizontally a short distance beyond the forks 3 3 in both directions.jecting-ends are supported the lower ends of the parallel arms 13 13ofthe auxiliary frame,

in which is carried the horizontal shaft, stud,

On these proholding the journal firmly in its bearings.

Between thearms'l3 and the hub of the truck 15 are theantirattling-springs 18 18. Between the forks 3 3 and the hub of thetruck 4 are similar antirattlin-g-sprin gs 12 12. With the arrangementabove-described the trolley has much better opportunity to catch thewire, for there is much more abundant space between the arms 14 14wherein the wire or conductor can be caught than is the case with theforms of trolley in common use. Inside of each truck4and 15 is asuitablebushing', which can easily be renewed when worn out.

On the shorter of the two projecting ends of the journal 5, that endhaving the nut 6, is supportedthe pscillating arm 13. On the other orlonger of the projecting ends of the same journal 5 Ba coiled spring 8,one end of which engages a slot or notch in the journal, while the otherend projects upwardly and bears against a lug or ear 11 on the side ofthe adjacent arm 13. The object of this spring is to lift the arms 13 13and upper wheel 15 whenever the main wheel 4 starts to leave the wire.In the same end of the. journal 5 that carries the spring 8 is a screw 7for the purpose of firmly attaching the upper end of the guide 9thereto, the lower end of this guide being secured to the yoke or harp 2by means of a bolt or screw 10. Guide 9 consists of an angular strip ofmetal made fast, as stated, to yoke 2 and journal 5 and serving toprevent the spring 8 from catching or engaging with the wires orconductors.

In the drawings the upper truck 15 is shown in its elevated or liftedposition, which it will occupy whenever the main wheel 4 has beendisengaged from the wire, and at the same time the arms 13 and theprojecting arms 14 are in their uppermost position. If now these arms 14embrace or receive the wire, it

of the wires and switches, so that there will be nothing projecting toengage improperly ICU therewith. On the side of the yoke or harp 2 is aprojection 21 to limit the downward movement of the upper-Wheel-carryingframe and prevent it from dropping too low when depressed. In theoperation of the trolley Whenever the main truck leaves the wire theupper and smaller truck 14 will be liftedup and held against the wire toprevent it from being lost.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a trolley, the combination with the main yoke, a journal therein,a main wheel on the journal, a second or auxiliary wheel, a journaltherefor, a frame supporting said journal, which frame hasWidely-diverging arms to catch the wire, and a spring coiled aboutandattached to the journal of the main Wheel,and having one end engagingthe frame of the second wheel.

2. In a trolley, the combination with the main yoke and its Wheel, ofthe auxiliary Wheel and its frame, a spring engaging the journal of themain Wheel and also the frame of the second wheel, and a guide forpreventing said spring from becoming entangled with the wires, saidguide being secured to the main yoke.

3. In a trolley, the combination with the main yoke and its wheel, ofthe auxiliary wheel and its frame, a spring engaging the journal of themain wheel and connected to the frame of the auxiliary wheel, and aguide for preventing said spring from becoming entangled with Wires,said guide being made fast to the journal of the main wheel and also tothe main yoke.

Signed at Exeter, New Hampshire, this 28th day of March, 1902.

GEORGE E. SMITH.

Witnesses:

GERTRUDE L. Foes, J OHN A. BROWN.

